Category 6 Cable, commonly known as Cat 6, is a standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible with the Category 5/5e and Category 3 cable standards. It supports frequencies up to 250 MHz and is suitable for 10BASE-T, 100BASE-TX, 1000BASE-T, and 10GBASE-T networks, making it ideal for high-speed data transmission over short distances.